/*
 * Copyright ©2021 su binglun(9085309@qq.com). All rights reserved.
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 *
 *---------------------------------------------------------------------
 *-                                                                   -
 *-           Website : http://phoenix.sunny360.cn/                   -
 *-                                                                   -
 *---------------------------------------------------------------------
 */
package cn.sunny360.core.handler.msg;

import cn.sunny360.core.common.PhResult;
import cn.sunny360.core.service.GroupService;
import cn.sunny360.core.service.MessageService;
import cn.sunny360.core.service.UserService;
import cn.sunny360.core.utils.Container;
import cn.sunny360.core.utils.ZipStrUtil;
import cn.sunny360.messsage.MsgMessage;
import io.vertx.core.Promise;
import io.vertx.core.Vertx;
import io.vertx.core.buffer.Buffer;
import io.vertx.core.http.ServerWebSocket;
import io.vertx.core.impl.logging.Logger;
import io.vertx.core.impl.logging.LoggerFactory;
import org.joda.time.DateTime;

import java.util.List;

public class HistoryAction implements MsgAction {
    private static Logger logger = LoggerFactory.getLogger(HistoryAction.class);

    private MessageService messageService;
    private UserService userService;
    private GroupService groupService;

    public HistoryAction() {
        messageService = Container.getComponent(MessageService.class);
        userService = Container.getComponent(UserService.class);
        groupService = Container.getComponent(GroupService.class);
    }

    @Override
    public Promise<PhResult> handler(Vertx vertx, ServerWebSocket webSocket, MsgMessage message) {
        Promise<PhResult> result = Promise.promise();
        long userId = Long.parseLong(message.getFrom());
        long offset = message.getVersion();
        Promise<Long> lastVersionPromise = Promise.promise();
        userService.getUserLastVersion(userId, lastVersionPromise);
        lastVersionPromise.future()
                .onFailure(result::fail)
                .onSuccess(lastVersion->{
                    Promise<List<String>> msListPromise = Promise.promise();
                    messageService.getHistoryMessageList(userId, lastVersion, offset, msListPromise);
                    msListPromise.future()
                            .onSuccess(list->{
                                for (String string : list) {
                                    MsgMessage msg = MsgMessage.newInstance();
                                    msg.parseJson(ZipStrUtil.unzipBase64(string));
                                    webSocket.write(Buffer.buffer(msg.toByteArray()));
                                }
                                //发送推送完成消息
                                MsgMessage finalMessage = MsgMessage.newInstance()
                                        .setType("history-final")
                                        .setVersion(0)
                                        .setTime(new DateTime().toString("yyyy-MM-dd HH:mm:ss"));
                                webSocket.write(Buffer.buffer(finalMessage.toByteArray()));
                                result.complete(PhResult.ok());
                            })
                            .onFailure(result::fail);
                });

        return result;
    }

}
